Note that you must have your Hilton HHonors Double Dip option set to Points + Miles and have Malaysia Airlines chosen as your preferred partner.

Conclusion

This is quite typical Hilton HHonors airline relates bonus miles offer that can make sense for those that collect Malaysian Airlines Enrich miles.

Here are the terms and conditions of this offer:

Earn up to 4X Enrich Miles: Offer is valid for qualifying nights completed between 1 August, 2015 and 31 October, 2015 (“Promotion Period“) at any participating properties in the Hilton Worldwide portfolio (view participating brands). To register and start earning up to Quadruple Miles per eligible US$1 spent, Hilton HHonors members must first register at HHonors.com/4XEnrichMiles prior to check-out of your stay within the Promotion Period. Registered HHonors members will only receive bonus Miles for qualifying nights completed during the Promotion Period, regardless of a check-in date before the Promotion Period begins or a check-out date after the Promotion Period ends. Certain negotiated and group rates are ineligible for participation, for a full listing of excluded rates, please click here.

Triple Miles can be earned for qualifying nights at participating properties in the Hilton Worldwide portfolio globally (except Singapore, Malaysia and Phuket properties listed below where you can earn Quadruple Miles). “Triple Miles” means you will receive bonus Miles equal to twice the number of base Miles earned during an eligible night – 3 Miles per eligible US$1 spent (1 base Mile and 2 bonus Miles per US$1 spent), for qualifying nights completed at a participating Hilton Hotels & Resorts, Waldorf Astoria™ Hotels & Resorts, Conrad® Hotels & Resorts, Canopy by Hilton, Curio – A Collection by Hilton™, DoubleTree by Hilton™, Embassy Suites Hotels™, Hilton Garden Inn™, Hampton Inn™, Homewood Suites by Hilton™, Home2 Suites by Hilton™ and Hilton Grand Vacations™. For stays at Home2 Suites by Hilton, you may only earn up to 100 Miles per stay. Void where prohibited.

To be eligible for this offer, you must (1) be a Hilton HHonors member; (2) be a member of Enrich; (3) register for the promotion on this page and; (4) select Malaysia Airlines as your Preferred Airline Partner. Ensure that you select Points & Miles™ as your Double Dip™ Earning Style within your HHonors profile in order to earn up to Quadruple Miles in conjunction with this offer.

Please allow six to eight weeks from completion of your stay for Miles to appear in your Enrich account. Offer is not transferable, is not valid for groups and cannot be combined with other select offers. Reward stays are not eligible for this offer. Other restrictions may apply. Hilton HHonors membership, earning of Points & Miles and redemption of Points are subject to HHonors Terms and Conditions.